fix: ensure topic docs only have specific topic

before this a topic like "auth" would include "authorizations"

src/commands/readme.ts

@@ -98,7 +98,7 @@ USAGE
         path.join('.', 'docs', topic.name.replace(/:/g, '/') + '.md'),
         config,
         topic,
-        commands.filter(c => c.id.startsWith(topic.name)),
+        commands.filter(c => c.id === topic.name || c.id.startsWith(topic.name + ':')),
       )
     }